Reed-board.



P. PRESTON.

REED BOARD.

APPLICATION FILED MAR. '9. 1915.

1 1 7 1 ,802 Patented Feb. 15, 1916.

Witnesses Inventor,

W by 7 Attorneys.

rm! COLUMBIA PLANOGIAPH co., WASHIN C.

PERCY PRESTON, OF DENISON, TEXAS.

REED-BOARD.

Specification of Letters Patent.

Patented Feb. 15, 1916.

Application filed March 19, 1915. Serial No. 15,498.

To all whom it may concern:

Be it known that I, PERCY PRESTON, a citizen of the United States,residing at Denison, in the county of Grayson and State of Texas, haveinvented a new and useful Reed-Board, of which the following is aspecification.

This invention relates to reed organs and is more particularly designedas an improvement on the structure disclosed in my co-pendingapplication filed September 29, 1914, Serial No. 864,104.

One of the objects of the invention is to provide a series of reedcells, the cells of the series being graduated in width and depth andbeing disposed in pairs, there being a pipe cell in communication withthe reed cells of each pair, these pipe cells being of a heightgradually increasing in descending the scale.

A further object is to provide ports or openings for maintainingcommunication between the reed cells and the pipe cells, these ports orholes diminishing in transverse area but increasing in depth indescending the scale and being located at the heels of the reeds.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed, can be made within thescope of what is claimed, without departing from the spirit of theinvention.

In the accompanying drawings the preferred form of the invention hasbeen shown.

In said drawings: Figure 1 is a longitudinal section through one endportion of the structure and showing a plurality of reed cells and pipecells. Fig. 2 is a plan view of the horizontal partition between thereed cells and pipe cells and showing the ports for maintainingcommunication between the cells. Fig. 3 is a view of the pipe cells, thesame being viewed in the direction of the arrow on line AB Fig. 1.

Referring to the figures by characters of reference 1 designates reedcells of different depths and widths, the depths and widths of the cellsincreasing in descending the scale. Each reed cell has a reed block 2supporting a reed 3.

Arranged longitudinally above the series of reed cells is a series ofpipe cells 4 which increase in height and width in descending the scale,one of these pipe cells being provided for every two reed cells and eachpipe cell communicating with its reed cells through ports or openings 5.As shown partlcularly in Fig. 2 these openings diminish in size indescending the scale and also 1ncrease in length or depth.

It has been found in practice that b graduating the reed cells accordingto width and depth, by graduating the pipe cells both as to width andheight, by graduating the ports or openings 5 as described, the resultsobtained surpass those heretofore secured because of the better qualityof tone and the increase of volume. The reason for varying the width ofthe cells is that the wider the reed tongue used in cells of equalwidth, the more direct will be the pull by suction of air through orpast the reed and the consequent refusal of the reed to vibrate, itbeing held down in the strong current or suction. By varying the widthof the cells to accommodate the tongues, this trouble is overcomebecause the air space on either side of the tongue allows the air topass the reed at right angles as well as up and down.

What is claimed is 2- 1. In a reed organ, a plurality of reed cells ofgraduated widths and depths, the widths and depths of the cellsincreasing in descending the scale, a plurality of pipe cells, saidcells increasing in height and width in descending the scale, each pipecell being in communication with two reed cells.

2. In a reed organ, a plurality of reed cells of graduated widths anddepths, the widths and depths of the cells increasing in descending thescale, a pluralitv of pipe cells, said cells increasing in height andwidth in descending the scale, each pipe cell being in communicationwith two reed cells, the openings maintaining communication between thepipe and reed cells gradually decreasing in diameter in descending thescale.

3. In a reed organ, a plurality of reed cells of graduated widths anddepths, the widths and depths of the cells increasing in descending thescale, a plurality of pipe cells,

said cells increasing in height and Width in descending the scale, eachpipe cell being in communication With two reed cells, the openingsmaintaining communication between the pipe and reed cells graduallydecreasing in diameter and depth in descending the scale.

In testimony that I claim the foregoing as myown, I have hereto aflixedmy signature in the presence of two Witnesses.

PERCY PRESTQN.

Witnesses JERRY HICKEY, W. R. VVILSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patentsv Washington, D. C.

